四川省教育厅重点项目No.13Z197;成都信息工程学院大气污染控制与环境模拟省重点实验室开放项目No.KFKT201305 Supported by the Key Project of Sichuan Provincial Education DepartmentNo.13Z197 and the Open Fund of Key Laboratory of Atmospheric Pollution Control and Environmental Simulation in Chengdu University of Information Technology No.KFKT201305